About a half-million people call an estimated 2,000 poor and isolated "colonias" home. The sparse communities dot the landscape of south Texas, along the more-than-1,000 miles the state's border shares with Mexico.
A staggering 100,000 of the residents -- mostly all U.S. citizens -- are children.
Maria Castro, 12, is among them and lives in a small house that her father built with her mother, nine of her sisters and brothers, and two cousins.
Outwardly, Maria seems like most other American...Full Story